TPA6041A4

更新时间： 2024-11-04 03:58:47

品牌	Logo	应用领域
德州仪器 - TI		稳压器放大器功率放大器驱动
页数	文件大小	规格书
30页	1253K
描述
2-W STEREO AUDIO POWER AMPLIFIER WITH DirectPath⑩ STEREO HEADPHONE DRIVE AND REGULATOR

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TPA6041A4 数据手册

TPA6041A4

www.ti.com

SLOS542–AUGUST 2007

2-W STEREO AUDIO POWER AMPLIFIER

WITH DirectPath™ STEREO HEADPHONE DRIVE AND REGULATOR

FEATURES

DESCRIPTION

•

Microsoft™ Windows Vista™ Compliant

•

Fully Differential Architecture and High PSRR

Provide Excellent RF Rectification Immunity

The TPA6041A4 is a stereo audio power amplifier

and DirectPath™ headphone amplifier in a thermally

enhanced, space-saving, 32-pin QFN package. The

speaker amplifier is capable of driving 2.1 W per

channel continuously into 4-Ω loads at 5 V. The

headphone amplifier achieves a minimum of 85 mW

at 1% THD+N from a 5-V supply. A built-in internal

4-step gain control for the speaker amplifier and a

fixed –1.5 V/V gain for the headphone amplifier

minimizes external components needed.

2.1-W, 1% THD+N Into 4-Ω Speakers and

85-mW, 1% THD+N Into 16-Ω Headphones

From 5-V Supply

•

DirectPath™ Headphone Amplifier Eliminates

(1)

Output Capacitors

Internal 4-Step Speaker Gain Control: 10, 12,

15.6, 21.6 dB and Fixed –1.5-V/V Headphone

Independent shutdown control and dedicated inputs

for the speaker and headphone allow the TPA6041A4

to simultaneously drive both headphones and internal

speakers. Differential inputs to the speaker amplifiers

offer superior power-supply and common-mode noise

rejection.

•

3.3-V Low Dropout Regulator for CODEC

Independent Shutdown Controls for Speaker,

Headphone Amplifier, and Low Dropout

Regulator (LDO)

•

Output Short-Circuit and Thermal Protection

APPLICATIONS

•

Notebook Computers

•

Portable DVD

(1) US Patent Number 5289137

SIMPLIFIED APPLICATION CIRCUIT

TPA6041A4

CODEC

ROUT+

ROUT–

SPKR_RIN+

SPKR_RIN–

SPKR

HPR

HPL

LOUT+

LOUT–

SPKR_LIN+

SPKR_LIN–

SPKL

VDD

SPVDD

SPGND

4.5 V – 5.5 V

BYPASS

GAIN0

GAIN1

Gain

Control

HP_EN

Shutdown

Control

SPKR_EN

OUTL

OUTR

HP_INR

SGND

HPVSS

CPVSS

HP_INL

HPVDD

CPVDD

VDD

3 V – 5.5 V

CPGND

C1P

C1N

4.5 V – 5.5 V

Regulator Enable

REG_EN

REG_OUT

3.3 V (To CODEC)

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

DirectPath, PowerPAD are trademarks of Texas Instruments.

Microsoft, Windows Vista are trademarks of Microsoft Corporation.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...30

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TPA6041A4 替代型号

型号	品牌	替代类型	描述	数据表
TPA6017A2	TI	功能相似	2 W STEREO AUDIO POWER AMPLIFIER WITH FOUR SELECTABLE GAIN SETTINGS

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